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On a conjecture concerning total domination subdivision number in graphs [PDF]

open access: goldAKCE International Journal of Graphs and Combinatorics, 2021
Let be the total domination number and let be the total domination subdivision number of a graph G with no isolated vertex. In this paper, we show that for some classes of graphs G, which partially solve the conjecture presented by Favaron et al.
S. Kosari   +5 more
doaj   +3 more sources

Total Roman domination subdivision number in graphs [PDF]

open access: greenCommunications in Combinatorics and Optimization, 2020
A {\em Roman dominating function} on a graph $G$ is a function $f:V(G)\rightarrow \{0,1,2\}$ satisfying the condition that every vertex $u$ for which $f(u)=0$ is adjacent to at least one vertex $v$ for which $f(v)=2$.
Jafar Amjad
doaj   +3 more sources

Total $k$-rainbow domination subdivision number in graphs [PDF]

open access: greenComputer Science Journal of Moldova, 2020
A total $k$-rainbow dominating function (T$k$RDF) of $G$ is a function $f$ from the vertex set $V(G)$ to the set of all subsets of the set $\{1,\ldots,k\}$ such that (i) for any vertex $v\in V(G)$ with $f(v)=\emptyset$ the condition $\bigcup_{u \in N(v ...
Rana Khoeilar   +3 more
doaj   +3 more sources

On the total domination subdivision numbers in graphs

open access: yesOpen Mathematics, 2010
Abstract A set S of vertices of a graph G = (V, E) without isolated vertex is a total dominating set if every vertex of V(G) is adjacent to some vertex in S. The total domination number γ t(G) is the minimum cardinality of a total dominating set of G. The total domination subdivision number sdγt
Sheikholeslami Seyed
doaj   +3 more sources

Total Domination Subdivision Number in Strong Product Graph [PDF]

open access: closedAmerican Journal of Applied Mathematics and Statistics, 2014
A set D of vertices in a graph G(V,E) is called a total dominating set if every vertex v∈V is adjacent to an element of D. The domination subdivision number of a graph G is the minimum number of edges that must be subdivided in order to increase the domination number of a graph. In this paper, we determine the total domination number for strong product
P. Jeyanthi, G. Hemalatha, B. Davvaz
openaire   +2 more sources

Total Restrained Domination Subdivision Number for Cartesian Product Graph

open access: closedInternational Journal of Mathematics and Soft Computing, 2013
In this paper we determine the total restrained dominating set and the total restrained domination subdivision number for Cartesian product graph.
G. Hemalatha, P. Jeyanthi
openaire   +2 more sources

On total domination subdivision numbers of trees

open access: yesDiscussiones Mathematicae Graph Theory
15 pages, 7 ...
Michael A. Henning, Jerzy Topp
openaire   +3 more sources

Total domination and total domination subdivision number of a graph and its complement

open access: closedDiscrete Mathematics, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Favaron, O.   +2 more
openaire   +3 more sources

Matchings and total domination subdivision number in graphs with few induced 4-cycles

open access: closedDiscussiones Mathematicae Graph Theory, 2010
Odile Favaron   +3 more
openaire   +2 more sources

Total dominator chromatic number of k-subdivision of graphs

open access: yesThe Art of Discrete and Applied Mathematics, 2022
Let $G$ be a simple graph. A total dominator coloring of $G$, is a proper coloring of the vertices of $G$ in which each vertex of the graph is adjacent to every vertex of some color class. The total dominator chromatic (TDC) number $ _d^t(G)$ of $G$, is the minimum number of colors among all total dominator coloring of $G$. For any $k \in \mathbb{N}$,
Alikhani, Saeid   +2 more
openaire   +4 more sources

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